本研究首先使用一無模拉製雛型機，進行一系列之拉製實驗。探討不鏽鋼管材之最佳成形溫度範圍，及拉製速度、拉製加速度和速度比對管材成形性的影響。實驗結果顯示，可成形之最大斷面縮減率為50 %、管材最佳成形溫度範圍落在1000℃到1100℃。並且探討拉製速度和拉製加速度對管材成形性和成形後產品尺寸的影響。利用有限元素分析，來觀察不鏽鋼管材在拉製初期之應力分佈和不鏽鋼管材達到穩定成形後之應變分佈。
採用一維熱傳理論，推導出管材在拉製方向之熱傳解析模式。利用此熱傳解析模式可快速求得管材之溫度分佈。利用K型熱電偶來量測管材加熱過程之溫度歷時量測值，並且搭配有限元素模擬，來求得熱傳解析模式中之熱傳參數，如空氣熱對流係數、管材加熱區之熱通量係數等。藉由實驗所量測到的管材溫度分佈值和熱傳溫度解析值進行比較，來驗證熱傳解析模式之適用性。最後，為了可讓細線金屬材料來施行無模拉製，於是進行細線無模拉製系統的設計。

This study used a self-developed prototype machine to conduct a series of experiments, and discuss the best forming temperature range for stainless steel tube drawing. The influences of the drawing speeds, the drawing accelerations and the velocity ratios on the formability of the tube were also discussed. The maximum reduction of area obtained can reach about 50% and the best forming temperature range is between 1000℃ and 1100℃ from the experiments. In addition, the effects of drawing speeds and drawing accelerations on the formability and the product size of the tube are investigated by using the finite element analysis. The finite element simulation results are used to investigate the effective stress at the early drawing stage and the effective strain distribution of the product.
One dimensional thermal theory is applied to build the thermal model in the drawing direction. Temperature distribution of tube can be obtained immediately using this analytical model. K-type thermocouples were used to measure the temperature history of tube during the heating process Parameter in the model, sush as air heat transfer coefficient, heat flux in the heating zone of tube are determined by comparing finite element simulation results and the measured temperatures. The validity of the thermal analytical model was verified by comparing the experimentally obtained temperature distribution of the tube. Finally, a dieless drawing system was designed for thin wire of metals.

第一章 緒論 1
1-1 前言 1
1-2 拉製加工成形技術簡介 2
1-3 無模拉製文獻回顧 3
1-3-1 無模拉製線材 4
1-3-2 無模拉製管材 5
1-3-3 無模拉製法應用 6
1-4 本論文之研究目的 8
1-5 論文架構 8
第二章 無模拉製成形實驗 9
2-1 實驗機台介紹 9
2-1-1 加熱系統 10
2-1-2 傳動系統 13
2-1-3 控制系統 15
2-1-4 無模拉製機台操作流程與運轉機制 15
2-2 無模拉製成形實驗 17
2-2-1 斷面縮減率 17
2-2-2管材可成形溫度範圍與成形極限拉製速度實驗 22
2-2-3不同拉製加速度之管材成形實驗 30
2-3 無模拉製成形有限元素分析 32
第三章 熱傳解析 38
3-1 熱傳解析方程式 38
3-1-1 加熱區未變形之熱傳方程式建立 39
3-1-2 加熱區有變形(無模拉製)之熱傳方程式建立 50
3-2 熱傳方程式相關係數求得 54
3-2-1 求得空氣熱對流h係數之實驗 59
3-2-2 求得空氣熱對流h係數之模擬 62
3-2-3 求得熱通量q_h^'係數 68
3-2-4 解出T_i 、T_1溫度值 72
3-3 加熱區未變形之溫度分佈 74
3-3-1 熱傳解析曲線之求得 74
3-3-2 熱傳解析與實驗、有限元素模擬之比較 76
3-3-3 熱傳導係數和空氣熱對流係數對溫度分佈之影響 82
3-4 加熱區有變形(無模拉製)之溫度分佈 87
3-4-1 熱傳解析曲線之求得 87
3-4-2 熱傳解析與實驗之比較 90
第四章 微細線材之無模拉製雛型機設計 98
4-1 超高頻高週波加熱法 99
4-2 阻抗式加熱方法 99
4-2-1 實驗機台介紹 100
4-2-2 傳動系統 101
4-2-3 加熱系統 102
4-3 高週波加熱與阻抗式加熱之比較 105
4-3-1 機台控制系統比較 105
4-3-2 加熱方法之比較 106
4-3-3 高週波和阻抗式加熱之優缺點 107
第五章 結論 108
5-1 研究成果與概要 108
5-1-1 無模拉製成形性實驗 108
5-1-2 無模拉製熱傳解析模式 109
5-1-3 微細線材之無模拉製雛型機設計 110
5-2 今後研究課題 110
參考文獻 112

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